Lance of Dawn is a legendary major card out of the New mechanic pool. Guiding Light becomes a piercing battle bolt at 130% damage and 25% more speed; the heal is halved.

You can take it once · it only turns up when your Main ability can actually use it · it can be offered for 0 of the 34 abilities.

Only one card can reshape that ability this way — this one, or Twin Lights and Beacon. Take one and the rest are gone for the run.